Home / 13,467.87-20,189.33-6,879.53

Finding the Fourth Proportional to 13,467.87, 20,189.33 and 6,879.53

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Solution

The fourth proportional to 13,467.87, 20,189.33 and 6,879.53 is: 10,312.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,467.87 : 20,189.33 = 6,879.53 : x
  2. Step 2: Convert to fraction form
    13,467.87/20,189.33 = 6,879.53/x
  3. Step 3: Cross multiply
    13,467.87x = 20,189.33 × 6,879.53
  4. Step 4: Simplify right side
    13,467.87x = 138,893,101.41
  5. Step 5: Solve for x
    x = 138,893,101.41/13,467.87
  6. Step 6: Final answer
    x = 10,312.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.